Nguyễn Lữ was a prominent military leader during the early 19th century in Vietnam. He is best known for his role in the resistance against the Nguyễn Dynasty, particularly during the Tây Sơn Rebellion. His leadership and strategic skills were crucial in several battles, helping to shape the course of Vietnamese history. Born in Bình Định Province, Nguyễn Lữ was a key figure in the fight for independence and played a significant role in the unification of Vietnam. His contributions are remembered as part of the broader struggle against foreign domination and the internal conflicts of the time, marking him as an important historical figure in Vietnam's past.